Influence of Plastic Deformation of Particulates on Flexure Toughness of Brittle Matrix Composite
Publication: Journal of Engineering Mechanics
Volume 131, Issue 3
Abstract
In ductile-particulate reinforced composites with relatively low filler contents, the fracture toughness is dominated by the crack trapping effect. In this paper, this phenomenon is discussed in detail in context of -curve analysis. The total fracture work is decomposed into the work of separation of matrix and the traction work associated with particulate rupture. It is concluded that, since the energy dissipation subsequent to the onset of unstable crack propagation does not affect the critical condition, the load bearing capacity of the particulates cannot be fully utilized. A closed-form expression relating the fracture toughness to the hardening behavior is obtained.
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Acknowledgment
This work was recently supported by the National Science Foundation under Grant No. CMS-0408276.
References
Bao, G., and Zok, F. (1993). “On the strength of ductile particulate-reinforced brittle-matrix composites.” Acta Metall. Mater., 41(12), 3515–3524.
Bartolome, J. F., Diaz, M., and Moya, J. S. (2002). “Influence of the metal particulate size on the crack growth resistance in mullite-molybdenum composites.” J. Am. Ceram. Soc., 85(11), 2778–2784.
Bower, A. F., and Ortiz, M. (1991). “A three-dimensional analysis of crack trapping and bridging by tough particles.” J. Mech. Phys. Solids, 39(6), 815–858.
Cardwell, B. J., and Yee, A. F. (1998). “Toughening of epoxies through thermoplastic crack bridging.” J. Mater. Sci., 33(22), 5473–5484.
Gilbert, E. N., Hayes, B. S., and Seferis, J. C. (2002). “Variable density composite systems constructed by metal particulate modified prepregs.” J. Compos. Mater., 36(17), 2045–2060.
Gross, B., and Srawley, J. E. (1972). “Stress intensity factor for bend and compact specimens.” Eng. Fract. Mech., 4(3), 587–589.
Hellan, K. (1984). Introduction to fracture mechanics, McGraw–Hill, NY.
Jin, Z. H., and Batra, R. C. (1999). “Thermal shock cracking in a metal-particulate-reinforced ceramic matrix composite.” Eng. Fract. Mech., 62, 339–350.
Kotoul, M., and Vrbka, J. (2003). “Crack bridging and trapping mechanisms used to toughen brittle matrix composite.” Theor. Appl. Fract. Mech., 40(1), 23–44.
Lange, F. F. (1970). “The interaction of a crack front with a second phase dispersion.” Philos. Mag., 22, 983–992.
McClintock, F. A., and Argon, A. S. (1993). Mechanical behavior of materials, CBLS, Marietta, OH.
Mower, T. M., and Argon, A. S. (1995). “Experimental investigations of crack trapping in brittle heterogeneous solids.” Mech. Mater., 19, 343–364.
Perek, J., and Pilliar, R. M. (1992). “Fracture toughness of composite acrylic bone cements.” J. Mater. Sci., 3(5), 333–344.
Qiao, Y. (2003a). “Fracture toughness of composite materials reinforced by debondable particulates.” Scr. Mater., 49, 491–496.
Qiao, Y. (2003b). “Modeling of resistance curve of high-angle grain boundary in Fe-3 wt %Si alloy.” Mater. Sci. Eng., A, 361, 350–357.
Qiao, Y., and Argon, A. S. (2003). “Cleavage cracking resistance of high angle grain boundaries in Fe-3 wt %Si alloy.” Mech. Mater., 35, 313–331.
Qiao, Y., and Kong, X. (2004). “Unstable crack advance across a regular array of short fibers in brittle matrix.” Compos. Sci. Technol., 64, 711–717.
Ravichandran, K. S. (1992). “The mechanics of toughness development in ductile phase reinforced brittle matrix composites.” Acta Metall. Mater., 40(5), 1009–1022.
Sabaizero, O., and Pezzotti, G. (2000). “Influence of the metal particulate size on toughness of composite.” Acta Mater., 48(4), 985–992.
Thomas, S. (1997). Applied modeling and dimensional analysis, McGraw–Hill, NY.
Ulfyand, Y. S. (1965). Survey of articles on the application of integral transforms in theory of elasticity, Univ. of North Carolina, Raleigh, NC.
Wu, W., Sadeghipour, K., Boberick, K., and Baran, G. (2002). “Predictive modeling of elastic properties of particulate-reinforced composites.” Mater. Sci. Eng., A, 332, 362–370.
Xu, G., Bower, A. F., and Ortiz, M. (1998). “The influence of crack trapping on the thoughness of fiber reinforced composites.” J. Mech. Phys. Solids, 46(10), 1815–1833.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 131 • Issue 3 • March 2005
Pages: 319 - 323
Copyright
© 2004 ASCE.
History
Received: Feb 2, 2004
Accepted: Aug 6, 2004
Published online: Mar 1, 2005
Published in print: Mar 2005
Notes
Note. Associate Editor: Majid T. Manzari
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